function yt_video(param_yt_video, param_yt_video_target) {
window.open("http://www.youtube.com/watch?v=" + param_yt_video + "", "" + param_yt_video_target + "");
}

function yt_video_embed(param_yt_video_2, param_yt_video_target_2) {
window.open("http://www.youtube.com/embed/" + param_yt_video_2 + "", "" + param_yt_video_target_2 + "");
}